Luggage frame of a wheeled suitcase

Abstract

A luggage frame for supporting a substantially rectangular wheeled suitcase is disclosed. The luggage frame comprises a rectangular board, a U-shaped frame mounted above the board, a lower U-shaped panel attached under the board and an upper U-shaped panel attached above the U-shaped frame, an L-shaped brace mounted to the rear end of the board, the rear panel comprising a tube receiving means, an L-shaped head piece mounted to the upper end of the U-shaped frame, two elongated tubes vertically mounted between the L-shaped head piece and L-shaped brace, two wheel assemblies mounted under the rear end of the board, and a flat panel being mounted to the upper panels of the two wheel assemblies. Except for the L-shaped head piece, L-shaped brace and the two wheel assemblies which require hard tooling, all the other components can be made by using generic tools when required.

What is claimed is: 
     
       1. A luggage frame for supporting a substantially rectangular wheeled suitcase having a lower end, an upper end, a rear end, and a flexible cover as its outer layer, the luggage frame comprising: a. a substantially rectangular board having a front end, a rear end, a left end, a right end, an upper surface and a lower surface;   b. a U-shaped frame having an upper end and two lower ends, the two lower ends being vertically mounted to the left and right ends of the rectangular board;   c. a lower U-shaped panel attached to the lower surface of the rectangular board for extending the flexible cover outside the lower end of the wheeled suitcase outward;   d. an upper U-shaped panel attached to the upper end of the U-shaped frame for extending the flexible cover outside the upper end of the wheeled suitcase outward;   e. an L-shaped brace having a lower panel and a rear panel, the lower panel being fixedly mounted to the rear end of the rectangular board, the rear panel comprising a tube receiving means;   f. two elongated tubes each having an upper end and a lower end, the lower ends of the two tubes being vertically mounted to the tube receiving means of the L-shaped brace;   g. an L-shaped head piece fixedly mounted outside the rear upper end of the wheeled suitcase, the headpiece comprising an upper panel and a rear panel, the upper panel being fixedly mounted to the upper U-shaped panel, and the upper panel further comprising a tube receiving means for engaging the upper ends of the two tubes wherein the upper ends of the two tubes are engaged in the tube receiving means of the head piece;   h. a U-shaped pull handle telescopingly installed within the two tubes through the upper panel of the L-shaped head piece;   i. two wheel assemblies mounted outside the rear lower end of the wheel suitcase, each of the wheel assemblies comprising an L-shaped wheel socket and a wheel mounted under the wheel socket, each wheel socket comprising a rear panel and a lower panel, each lower panel of the two wheel sockets being fixedly mounted under the rear end of the rectangular board; and   j. a lower flat panel being positioned inside the flexible cover over the rear lower end of the wheeled suitcase for protecting loadings inside the wheeled suitcase, the lower flat panel being fixedly mounted to the rear panels of the two wheel sockets with the flexible cover clamped in between, the lower flat panel being also fixedly mounted to the rear panel of the L-shaped brace for strengthening the structure of the luggage frame.   
     
     
       2. The luggage frame of claim 1 further comprising an upper flat panel being positioned inside the flexible cover over the rear upper end of the wheeled suitcase for protecting loadings inside the wheeled suitcase, the upper flat panel being fixedly mounted to the rear panel of the L-shaped head piece with the flexible cover clamped in between. 
     
     
       3. The luggage frame of claim 1 wherein the lower and the upper U-shaped panels are linked together by using the U-shaped frame for protecting two side ends of the wheeled suitcase. 
     
     
       4. The luggage frame of claim 1 wherein the two lower ends of the U-shaped frame are linked together by using the rectangular board for strengthening the structure of the luggage frame. 
     
     
       5. The luggage frame of claim 1 wherein the rectangular board is made of plywood.